2013 29th IEEE International Conference on Data Engineering (ICDE 2013)
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Abstract

Πgora is an integration system for probabilistic data modelled using different formalisms such as pc-tables, Bayesian networks, and stochastic automata. User queries are expressed over a global relational layer and are evaluated by Πgora using a range of strategies, including data conversion into one probabilistic formalism followed by evaluation using a formalism-specific engine, and hybrid plans, where subqueries are evaluated using engines for different formalisms. This demonstration allows users to experience Πgora on real-world heterogeneous data sources from the medical domain.
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